Fuse-igniter.



10. 660,220. Patented mp2s, i900.

.1. T. NAGLE. FUSE IGNITEB.

. (Application filed June 7, 3590.;

(No Model.)

I Y /Af/EJWURI l VITNESSES: v v e70 BY I 1.0%,

W Alzbrnqv UNITED STATES JOHN OMAS NAGLE,

OF BUTTE, MONTANA.

ru ss-lomrsn.

.srnomrosrron forming part of Letters Patent No. 660,220, dated Octoberas, 1900.

Application filed June 7,1399. sum No. 719,011. on model.)

To all whom it may concern:

Be it known that I, JoHN THOMAS NAGLE, a citizen of the United States,residing at Butte, (post-office address,) in the county of Silver Bowand State of Montana, have invented certain new'and useful Improvementsin Igniting Devices for Fuses; and I do herebydeclare that the followingis a full, clear, and exact description of the same,-reference l tobeing bad to the annexed drawings, making view of a fnse-igniterconstructed in accordance with my invention and showing the end of thefuse connected thereto; Fig. i, a longitudinal section of the devicewith the fuse removed. In the accompanying drawings, A represents a tubeof copper or other metal or of any suitable material found best adaptedto the purpose, whichtube may be of any desirable length and of adiameter to properly fit over the end of the fuse, as shown in Fig. 1 ofthe drawings. One end of the tube A has a filling C of any suitablecombustible composition, but preferably of a composition consisting ofthe following ingredients: sulfur, one part; sugar, one part; bichromateo potash, one part; oxid manganese, one part; chlorate potash, sixteenparts; litharge, six parts; charcoal willow,- four parts; acacia, ourparts. The tube A is supplied with this composition :1; portion of itslength, leavinga space back of it for the reception of the end -of thefuse, as indicated at B in Fig. lot the drawings. The compositecombustible filling C extends beyond the end of the tnbe,so that aportion will be exposed forconvenience in igniting it by means of afriction-match 5o tip D, which is embedded in the composition andprojects a suflicient distance from the same; so that it may beconvenientlyignited by friction. The tip D may be composed of any of thewell-known friction-match compounds as found most preferable. i Theexposed port-ion of the fillingCor that which extends beyond the end ofthe tube A forms a composite head and not being con fined within thetube renders the ignition 6- thereof more certain when the match-tip isignited. 4 The exposed portion of the filling C and the match-tipDarerendered impervious to moisture by a coating E of paratfin or othersnitable waterproof substance. This device to which the fuse isconnected is both simple and comparatively inexpensive, and the ignitionof the fuse is certain and reliable without danger or risk to theoperator from premature explosion.

Having now fully described my invention, what I claim as new, and desiretosecure by Letters Patent, is e An igniting device for fuses,consisting of 15 a suitable tube, a composite combustiblefill ingtherein extending beyond one end of the tube to form an exposed portion,a frictionmatch tip embedded in the composite filling, 7

and a waterprooficoating covering the ex posed portions of the fillingand the matchtip, substantially as and for the purpose set forth. r

In testimony that I claim the foregping as myown I have hereto affixedmy signature in the presence of two witnesses.

- JOHN THOMAS NAGLE.

Witnesses:

EDWARD W. IIARNEY, W. M. BICKFORD.

